Fix TypeScript linting

Also upgraded to `@definitelytyped/dtslint`.

package.json

@@ -29,6 +29,7 @@
     "uglify-js": "^3.1.4"
   },
   "devDependencies": {
+    "@definitelytyped/dtslint": "^0.0.100",
     "@playwright/test": "^1.17.1",
     "aws-sdk": "^2.1.49",
     "babel-loader": "^5.0.0",
@@ -38,7 +39,6 @@
     "chai-diff": "^1.0.1",
     "concurrently": "^5.0.0",
     "dirty-chai": "^2.0.1",
-    "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
     "eslint": "^6.7.2",

types/test.ts

@@ -4,7 +4,8 @@
  * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/handlebars-tests.ts
  */
 
-import * as Handlebars from 'handlebars';
+import Handlebars from 'handlebars';
+import { HandlebarsTemplateDelegate, hbs } from 'handlebars';
 
 const context = {
   author: { firstName: 'Alan', lastName: 'Johnson' },

types/tslint.json

@@ -1,5 +1,5 @@
 {
-  "extends": "dtslint/dtslint.json",
+  "extends": "@definitelytyped/dtslint/dtslint.json",
   "rules": {
     "adjacent-overload-signatures": false,
     "array-type": false,
@@ -76,4 +76,4 @@
     "void-return": false,
     "whitespace": false
   }
-}
+}